Contact Corrosion
Contact corrosion can occur if inadequate fasteners (bolts, nuts, washers, etc.) are used.
For this reason, only fasteners with a special surface coating may be installed.
Furthermore, only rubber/plastic parts and adhesive made of electrically non-conductive materials are used.
If there are doubts about whether parts can be used or not, use new parts. Refer to the Parts Information.
NOTE:
Only original replacement parts are recommended. They are checked and are compatible with aluminum.
The use of Audi accessories is recommended.
Contact corrosion damage is not covered under warranty.